/Engine/Source/Developer/AnimationDataController/Public/AnimDataController.h
Sets the frame rate according to which the bone animation is expected to be sampled. Broadcasts a EAnimDataModelNotifyType::FrameRateChanged notify if successful. The number of frames and keys for the provided frame rate is recalculated according to the current value of UAnimDataModel::PlayLength.
virtual void SetFrameRate ( [FFrameRate](API\Runtime\Core\Misc\FFrameRate) FrameRate, bool bShouldTransact )